Linux kernel & device driver programming

Cross-Referenced Linux and Device Driver Code

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Version: [ 2.6.11.8 ] [ 2.6.25 ] [ 2.6.25.8 ] [ 2.6.31.13 ] Architecture: [ i386 ]
  1 /*
  2  * Motorola USB Phone driver
  3  *
  4  * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com>
  5  *
  6  *  This program is free software; you can redistribute it and/or modify
  7  *  it under the terms of the GNU General Public License version 2 as
  8  *  published by the Free Software Foundation.
  9  *
 10  * {sigh}
 11  * Mororola should be using the CDC ACM USB spec, but instead
 12  * they try to just "do their own thing"...  This driver should handle a
 13  * few phones in which a basic "dumb serial connection" is needed to be
 14  * able to get a connection through to them.
 15  */
 16 
 17 #include <linux/kernel.h>
 18 #include <linux/init.h>
 19 #include <linux/tty.h>
 20 #include <linux/module.h>
 21 #include <linux/usb.h>
 22 #include <linux/usb/serial.h>
 23 
 24 static struct usb_device_id id_table [] = {
 25         { USB_DEVICE(0x05c6, 0x3197) }, /* unknown Motorola phone */
 26         { USB_DEVICE(0x0c44, 0x0022) }, /* unknown Mororola phone */
 27         { USB_DEVICE(0x22b8, 0x2a64) }, /* Motorola KRZR K1m */
 28         { USB_DEVICE(0x22b8, 0x2c64) }, /* Motorola V950 phone */
 29         { },
 30 };
 31 MODULE_DEVICE_TABLE(usb, id_table);
 32 
 33 static struct usb_driver moto_driver = {
 34         .name =         "moto-modem",
 35         .probe =        usb_serial_probe,
 36         .disconnect =   usb_serial_disconnect,
 37         .id_table =     id_table,
 38         .no_dynamic_id =        1,
 39 };
 40 
 41 static struct usb_serial_driver moto_device = {
 42         .driver = {
 43                 .owner =        THIS_MODULE,
 44                 .name =         "moto-modem",
 45         },
 46         .id_table =             id_table,
 47         .num_ports =            1,
 48 };
 49 
 50 static int __init moto_init(void)
 51 {
 52         int retval;
 53 
 54         retval = usb_serial_register(&moto_device);
 55         if (retval)
 56                 return retval;
 57         retval = usb_register(&moto_driver);
 58         if (retval)
 59                 usb_serial_deregister(&moto_device);
 60         return retval;
 61 }
 62 
 63 static void __exit moto_exit(void)
 64 {
 65         usb_deregister(&moto_driver);
 66         usb_serial_deregister(&moto_device);
 67 }
 68 
 69 module_init(moto_init);
 70 module_exit(moto_exit);
 71 MODULE_LICENSE("GPL");
 72 
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